REAL

Ameliorating effect of kinetin on pigments, photosynthetic characteristics, carbohydrate contents and productivity of cadmium treated Sorghum bicolor plants

Aldesuquy, H. S. and Haroun, S. A. and Abo-Hamed, S. A. and El-Saied, A. A. (2004) Ameliorating effect of kinetin on pigments, photosynthetic characteristics, carbohydrate contents and productivity of cadmium treated Sorghum bicolor plants. Acta Botanica Hungarica, 46 (1-2). pp. 1-21. ISSN 0236-6495

[img] Text
abot.46.2004.1-2.1.pdf
Restricted to Repository staff only until 30 June 2024.

Download (491kB)

Abstract

The objective of this study was to investigate the effect of soil drench with three different concentrations of CdCl2 on pigments content, photosynthetic activity, carbohydrate contents and productivity of Sorghum bicolor L. cv. 'Dorado' plants throughout various stages of plant growth and development. Also particular interest was focussed on the effect of grain presoaking with kinetin to ameliorate the toxicity effects exerted by the different levels of CdCl2. In the majority of cases, grain pretreatment with kinetin increased photosynthetic pigments, photosynthetic activity, Hill reaction as well as carbohydrate contents in leaves of cadmium treated sorghum plants. In general, the observed decrease in yield and yield attributes of sorghum plants in response to Cd2+ treatments was accelerated particularly when grains were presoaked in kinetin. The ameliorating effect of kinetin was more pronounced at 1 mM CdCl2. Grain priming with kinetin increased grain biomass (i.e. fresh and dry weights), carbohydrates, protein and ion contents in yielded grains of cadmium treated sorghum plants. Cadmium treatments altered the balance of growth bioregulators in developed grains of sorghum plants. Thus, CdCl2 at all the used concentrations exerted a significant decrease in growth promotor levels with an increase in growth inhibitory substances equivalent to abscisic acid. On the other hand, grain priming with kinetin increased the growth promotory substances and reduced abscisic acid levels.

Item Type: Article
Subjects: Q Science / természettudomány > QK Botany / növénytan
Depositing User: Endre Sarvay
Date Deposited: 12 Mar 2018 09:43
Last Modified: 12 Mar 2018 09:43
URI: http://real.mtak.hu/id/eprint/78032

Actions (login required)

Edit Item Edit Item